Portsmouth Harbour - Port Solent Weather Forecast

    • 2
    • 8

    Light rain

    • 2
    • 6

    Cloudy

    • 0
    • 5

    Sunny day

    • 6
    • 7

    Cloudy

    • 7
    • 9

    Cloudy

    • 6
    • 9

    Light rain

Today 8 Jan London and South East England

Early, rain, sleet and snow clearing east Thursday. Becoming windy with a chance of rain and snow later Thursday into Friday, low confidence. Sunny, with light winds probable Saturday.

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Portsmouth Harbour - Port Solent Temperature Statistics

January Temperature

Thorney Island (12km)

  • Lowest 6 January, 2026

    -4.9 °C

  • Average January

    1.9 °C

  • Highest 1 January, 2026

    7.4 °C

Climate (2021–Present)

Thorney Island (12km)

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  • Average Low 2021–2026

    8.6 °C

  • Average 2021–2026

    11.9 °C

  • Average High 2021–2026

    15.1 °C
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